package javacode.chapter04;

public class Example4_19 {
    public static void main(String[] args) {
        // 打印九九乘法表
        for (int i = 1; i <= 9; i++) {
            for (int j = 1; j <= i; j++) {
                System.out.print(j + " * " + i + " = " + j * i + "\t\t");
            }
            System.out.println();
        }

        // 另一种写法
        for (int i = 1; i <= 9; i++) {
            for (int j = 1; j <= i; j++) {
                System.out.print(j + " * " + i + " = " + j * i + "\t\t");
                if (j == i) {
                    System.out.println();
                }
            }
        }

        /*
        1 * 1 = 1
        1 * 2 = 2		2 * 2 = 4
        1 * 3 = 3		2 * 3 = 6		3 * 3 = 9
        1 * 4 = 4		2 * 4 = 8		3 * 4 = 12		4 * 4 = 16
        1 * 5 = 5		2 * 5 = 10		3 * 5 = 15		4 * 5 = 20		5 * 5 = 25
        1 * 6 = 6		2 * 6 = 12		3 * 6 = 18		4 * 6 = 24		5 * 6 = 30		6 * 6 = 36
        1 * 7 = 7		2 * 7 = 14		3 * 7 = 21		4 * 7 = 28		5 * 7 = 35		6 * 7 = 42		7 * 7 = 49
        1 * 8 = 8		2 * 8 = 16		3 * 8 = 24		4 * 8 = 32		5 * 8 = 40		6 * 8 = 48		7 * 8 = 56		8 * 8 = 64
        1 * 9 = 9		2 * 9 = 18		3 * 9 = 27		4 * 9 = 36		5 * 9 = 45		6 * 9 = 54		7 * 9 = 63		8 * 9 = 72		9 * 9 = 81
         */
    }
}
